100% natural teas. Blend Master's Note: There's no mistaking a Zinger! The classic lemonade stand-style refreshment of this enduring favorite starts with real lemons and lively Guatemalan lemongrass. We blend our lemons with hibiscus, whose tangy taste and ruby-red color are the signature of a Zinger, to create a bright tea that's equally satisfying under the sun and the moon. - Charlie Baden, Celestial Blendmaster since 1975. Our Natural Heritage: In 1969, Celestial Seasonings began picking fresh herbs in the forest and canyons of the Rocky Mountains and blending them to create healthy, flavorful teas. This tradition of turning the best of nature into delicious taste experiences continues to this day. We have never used artificial colors, flavors or preservatives, and every Celestial Seasoning product is still made with the highest quality all-natural ingredients available. Naturally caffeine free. Gluten free. Blended in Boulder, Co.